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自从DBTF型空气断路器问世以来,已制造了近10000台。这种断路器在早期被叫做“快速空气开关”。为了满足牵引系统短路容易不断增长的需要和提高机车动车利用率的要求,对断路器进行了不断地改进。最近设计的断路器的开断容易为300兆伏安,大修周期为动作250000次。鉴于其限制操作过电压的能力,这种断路器非常适用于变流器式机车动车。许多主要的铁路公司,在其生产的高级机车动车上,都选用了DBTF型断路器。
Since the advent of the DBTF air circuit breaker, nearly 10,000 have been manufactured. This type of circuit breaker was called “quick air switch” in the early days. In order to meet the needs of short-circuit traction system is easy to grow and improve the demand for locomotive motor utilization, the circuit breaker has been continuously improved. Breaking the circuit breaker recently designed easily 300 MVA, overhaul cycle of 250,000 movements. Due to its limited ability to operate overvoltages, this circuit breaker is well suited for converter locomotives. Many major railway companies use DBTF circuit breakers on their high-end locomotives.